UNIX equivalent to DOSEDIT ??

[Manfred W. Prange]

In article <269 at cadlab.sublink.ORG> staff at cadlab.sublink.ORG (Alex Martelli) writes:
>On a less grand scale, there is mash, the sh-subset-cum-dosedit,
>which runs comfortably on, say, Coherent (64K max limit on programs).
>It's public domain, too, though the only place I know where you could
>download it from is a BBS right here in Bologna, Italy... bit costly,
>that :-).  Enough choices for you?

I am looking for a shell with command editing/retrieval that will run
under Coherent - or anything that will compile under Coherent. :-)
Does anyone know of an FTP site for mash? -MWP